PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2017/07/28-05:43:00
G01     311.3          29.6                3.4 +/-    1.28       6.0 +/-    1.28  0.050 / 0.020
G10     99.1           45.2                4.5 +/-    0.53       6.1 +/-    0.53  0.060 / 0.020
G11     285.7          29.5                6.0 +/-    0.94      10.7 +/-    0.94  0.030 / 0.010
G14     347.9          68.9                4.0 +/-    0.61       4.3 +/-    0.61  0.040 / 0.020
G18     112.7          20.3                3.6 +/-    3.17       7.8 +/-    3.17  0.070 / 0.150
G22     307.5          22.3                5.7 +/-    3.16      11.9 +/-    3.16  0.070 / 0.110
G25     83.1           14.2                5.2 +/-    2.00      13.2 +/-    2.00  0.080 / 0.040
G31     170.9          58.6                7.5 +/-    0.47       8.7 +/-    0.47  0.090 / 0.050
G32     28.4           57.3                2.6 +/-    1.32       3.1 +/-    1.32  0.030 / 0.050